The electrophysiological correlates of auditory distraction

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dc.contributor.authorPonjavic, Karla D.
dc.contributor.supervisorTata, Matthew S.
dc.contributor.supervisorPiquette-Tomei, Noëlla A.
dc.date.accessioned2014-03-04T18:55:37Z
dc.date.available2014-03-04T18:55:37Z
dc.date.issued2013
dc.degree.levelMasters
dc.descriptionxxii, 171 p. : col. ill. ; 29 cmen_US
dc.description.abstractThis thesis used the electroencephalogram (EEG) to measure the electrophysiological correlates of auditory distraction. Chapter One determined that relative to broad-band noise, the presence of a continuous speech signal impaired task performance, attenuated the N1 peak and reduced theta/alpha band inter-trial phase coherence around the latency of the N1. Chapter Two found that reductions of inter-trial phase coherence during distraction were related to both disruptions of gain and the temporal fidelity of evoked responses. Chapter Three found that postsecondary adults with ADHD are not characterized by greater levels of distraction and that this population may be responding to sensory events with abnormally high phase locking. Chapter Three also found that Un-medicated ADHD adults had significantly more N1 latency, theta/alpha band evoked power than Medicated ADHD or Control groups. These results extend the literature on distraction by using time-frequency measures to assess how distraction modulates early sensory processing of stimulus events.en_US
dc.identifier.urihttps://hdl.handle.net/10133/3374
dc.language.isoen_CAen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, c2013en_US
dc.publisher.departmentDepartment of Neuroscienceen_US
dc.publisher.facultyArts and Scienceen_US
dc.subjectAuditory perception -- Testingen_US
dc.subjectAttention-deficit hyperactivity disorder -- Testingen_US
dc.subjectDissertations, Academicen_US
dc.titleThe electrophysiological correlates of auditory distractionen_US
dc.typeThesisen_US
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